Skip hoist



May 4 1926.

c. M. YOUNG, JR

SKIP HOIST Filed Sept. 8

, 192E) 2 Sheets-Sheet 1 May 4 1926.

C. M. YOUNG, JR

SKIP HOIST Filed Sept. 8

, 1925 2 Sheets-Sheet 2 172 z/e/zfor.

C arias' J[ Y azzzzyix 9K Patented May 4, 1926.

UNITED .STATES A 1,5 3,711 PATENT OFFICE.

CHARLES H. YOUNG, JR; OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO LINK-BELTCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SKIP HOIST.

Application filed September 8, 1925. Serial F0. 54,854.

To all whom it may concern:

Be it known that I, CHARLES M. YOUNG, J r., a' citizen of the UnitedStates, residing at Philadelphia, in the-county of Philadel-' phia andState of Pennsylvania, have invented a certain new and usefulImprovement in Skip Hoists, of which the following is a specification.

This invention relates to a skip hoist and 10 to automatic means forfilling the same from a bin or other receptacle containing material, andadapted upon operation of the hoist to discharge the same into thebucket or skip. It has-for one object to provide a device by means ofwhich the material may be readily discharged into the bucket'withoutspilling. Another object is to provide a device of the type mentionedwith a light, durable and readily operated gate for controlling the flowof material from the bin or other receptacle in response to the movementof the bucket. into which it is to be discharged. -'Other objects willappear from time to. time throughout 5 the specification and claims Myinvention is illustrated more or less diagrammatically in theaccompanying drawings, wherein:

Figure 1 is aside elevation with parts in section of the skip bucket inthe receiving position, showing the gate and chute mechanism;

Fi ure 2 is a similar view, with parts omitted s owing the gate closed;

Figure 3 is a section on'the line 33 of Figure 1; I

Fig. 4 is a fragmentary view showing the contact member on the chutemoved to inoperative position.

Like parts are indicated by like characters throughout.

A is a track. A is a skip bucket supported from the track by means ofthe wheels A and adapted to move therealong.

B is a bail supporting the bucket as at B and having joined to it acable B.

C C are contact rollers supported on arms C C. D is a hopper orreceptacle in which the material to be deposited in the bucket is firstplaced. D is a chute leading from it. It is controlled by an undercutgate formed of a gate portion E and a pair of side members E each havingan arcuate portion E and rearwardly extending arms E These arms arepivoted on a .bers. E tiirfiough this ring. Gr G are adjustably shaft Ewhich is supported in the bearings E on the chute D The arms E arejoined by a connecting member E u on which are placed the movablecounterweights E" which are held against accidental displacement bybolts E". E is an outwardly turned lip on the undercut gate E. It isadapted to contact the bottom part of the guide member, which isdescribed below.

Pivoted also on the shaft E is a. guide 05 member F. It is formed withbottom and side members, the latter being joined at the discharge end bya 'baflle member F. Additional baflle members F 2 F are laced insuitable locations throughout the ength of To the uide member F. Theymay be .provide with reinforcing angle members F F.

F is a closedbottom ofthe guide member.

As shown it extends only throughout a part of the length of the uidemember, terminating adjacent the un ercut gate. a

G G are perforated bracket members on .the sides of the guide member F.In each of them is positioned a bolt G. G is an outwardly projectingring on each of the mem- The bolt is slidably positioned mounted lockingnuts on the bolt G Between the ring Gr and the nuts G on each of thebolts G is a helical spring G. By

means of this construction limited cushioned and the guide memberispermitted,

H H are contact plates, one located on,

each side of .the guide member F and adapted to be contacted by therollers C, as shown in the drawings, or to be moved out of position.

I is a baflle member adjustably mounted in the chute D. As shown it isheld in position 5 by bolts I and I, the latter extending through anarcuate slot 1*. By means of this construction the member I may berotated throughout a limited arc in order to adjust its position withinthe discharge mouth of 9; the chute D.

The adj ustable'bafile member or flow plate I by means of itsadjustability permits adjustment of the size of the opening throughwhich the material passes so as to control the point where the materialstrikes the first bafile plate on the open guide member F, therebypermitting adjustment for the use of material having a flat angle ofrepose as well as material having a steep angle of repose. no

charge passage.

This adjustabilit of the flow plate also permits control of t e pointwhere the angle of repose of the material intersects the outer edge ofthe bottom plate of the guide memher or chute as the same is rotatedupward, thus causing material to stop flowing from the guide member orchute earlier than would be the case in an uncontrolled dis- And for agiven adjustment the amount of material remaining in the upturned guidemember when the same is in the closed position shown in Figure 2, it isreduced, and thus reduces the chance of spilling material.

The contact plates may be rotated into the position shown in Figure 4and in that position the rollers (lot the bucket A will not contact thelates and thus the bucket may be raised an lowered past the contactplates without opening the gate assembly.

Although I have shown an operative device, still it will be obvious thatmanychanges might be made in size, shape and arrangement of partswithout departing materially from the spirit of m Y invention; and Iwish therefore, that my s owing be taken as in a sense diagrammatic.

The use and operation of my invention are as follows:

When it is desired to use the skip, material is deposited in the mainbin and the necessary hoisting machinery is set in operation, to lowerthe ski bucket until the the contact rollers on it strike the contactplates on the side of the guide member. Sometimes this contact is veryviolent, and it is to cushion the violence of the shock due to thiscontact that the gate and guide member are mounted for relativecushioned movement. Thus the guide member ma start downward toward theopening position slightly ahead of the undercut gate. As soon as theshock of the contact has been absorbed, the two will move substantiallytogether.

As movement continues, the guidemember turns into the bucket and theundercut gate moves out of its closing position in the bottom of thechute and permits discharge of the material through it into the skipbucket. The bafile plates located along the open top of the guide memberprevent spilling or discharge of material, because as material rushesthrough the chute and the guide member, it contacts these baflles and isprevented from overflowing through the top of the guide member. In casethe material comesto a standstill with the parts in the open or loadingposition, it will find its angle of repose against successive bafilesand no discharge through the bucket and guide member will take place. I

When the bucket is full, the hoisting mechanism operates to reverse itsmovement and the bucket is raised. As it does so the counterweightsswing the undercut gate and the guide member upward, and thus the guidemember moves out of the open mouth of the bucket and the undercut gatecloses the discharge opening from the chuteand the parts thus assume theposition shown in Figure 2, in which position no discharge can takeplace.

I claim:

1. In combination with a chute, a chute closing member adaptedto move toprevent discharge therethrough,said member formed with a pair ofsidemembers and provided with a generally arcuatechute closing gateportion, and an open guide member adapted to move with said gate, and tohave limited cushioning movement relative thereto.

2. In combination with a chute, a chute closing member adapted to moveto prevent discharge therethrough, said member formed with a pair ofside members. pivoted on a portion of said chute, and provided with agenerally arcuate chute closing gate portion, and an open guide memberpivoted also on said chute adapted to move with said gate and to havelimited cushioning movement relative thereto.

3. In combination with a chute, a chute closing member adapted to moveto prevent discharge therethrough, said member formed with a pair ofside members pivoted on a portion of said chute, and provided with agenerally arcuate chute closing gate portion, extensions therefrom, andcounterweights supported from said extensions, and an open guide memberpivoted also on'sa-id chute adapted to move with said gate and to havelimited cushioning movement relative thereto.

4. In combination with a chute, a chute closing member adapted to moveto prevent discharge therethrough, said member formed of a pair of sidemembers pivoted on a portion of said chute, and provided with an arcuatechute closing gate portion, extensions therefrom and removablecounterweights supported from said extensions, and an open guidememberpivoted also on said chute adapted to movewith said gate and tohave limited cushioning movement, relative thereto, said guide memberprovided with a contacting portion in combination with a bucket having acontacting member adapted to contact said contacting portion to open thechute closing member and to move the guide member into operativeposition.

5. In-a skip hoist, a chute, anda skip adapted to be filled thegefrom,in combination with a chute closing memberadapted to be moved/inresponse to the movement of the skip to prevent discharge therethrough,said member formed of a pair'of side members provided with an arcuatechute closing gate portion, and an open'guide member adapted to movewith said gate and to have gate portion, extensions therefrom, andremovable counterwelghts supported from said extenslons, and an openguide member with an arcuate chute closing gate portion,

and an open guide member pivoted also on said chute adapted to move withsaid gate and to have limited cushioning movement relative thereto.

7. In a skip hoist, a chute, and a skip adapted to be filled therefrom,incombination with a chute closing member adapted to be moved in.response to the movement of the skipto prevent discharge therethrough,said member formed of a pair of side members pivoted on a portion ofsaid chute, and provided with an arcuate chute closing pivoted also onsaid chute, adapted to move with said gate and to have limite'dcushioning movement relative thereto.

8. In a skip hoist, a chute, and a skip adapted to be filledtherefrom,in combination with a chute closing member adapted to be movedin response to the movement of the skip to prevept dischargetherethrough, said member formed of a pair of side members pivoted on aportion of said chute, and

provided with an arcuate chute closing gate portion, extensionstherefrom and removable counterweights supported from said exten sions,and an open guidemember pivoted also on said chute adapted to move withsaid gate and to have limited cushioning move ment relative thereto,said guide member provided-with acontacting portion" in combination witha bucket having'a-contacting member adapted to contac said contactingportion to open. the chute closing member and to move theguide memberinto operative position.

'9. In combination with a chute, a chute closing mcmberadapted to moveto prevent discharge therethrough, said member formed with {IgPiliI' ofside members and provided with a generally arcuate chute'closing gateportion, and-an open guide member adapted to move with said gate, and anadjustable throat member for-said chute whereby the size of thedischarge opening may be varied.

10. In combination with a chute, a chute closing member adapted to moveto prevent discharge therethrough, said member formed with a pair ofside members pivoted on a portion of said chute, and rovided with-agenerally arcuate chute closing gate portion,

and an open guide member pivoted also on a said chute adapted to movewith said gate and to have limited cushioning movement relative thereto.

11. In a skip hoist, a chute, and a skip adapted to be filled therefrom,in combination with a chute closing member adapted to be moved inresponse to the movement of the skip to prevent discharge therethrough,

said member formed of a pair of side members provided with an arcuatechute closing gate, portion, and an open guide member adapted to movewith said gate, a contact member on said chute closing member adapted tobe contacted by a part of said skip, said member adapted to be moved outof the path of said skip; whereby the skip may be moved past it withoutcontacting it.

12. In a skip hoist, a chute, and a skip adapted to be filled therefrom,in combination with a chute closing member adapted to be moved inresponse to the movement of the skip to prevent discharge therethrough,said member formed of a pair of side members pivoted on a portion ofsaid chute, provided with an arcuate chute closing gate portion, and anopen guide member pivoted also on said chute adapted to move with saidgate and to have limited cushioning movement relative thereto, a contactmember on said chute closing member adapted to be contacted by a part ofsaid ski said member adapted to be moved out of t e path of said skipwhereby the skip may be moved past it without contacting it.

13. In combination with a chute, achute closing member, adapted to bemoved to prevent discharge therethrough, in combination with an openguide member adapted to move with said closing member and to guide thedischarge of material from the chute, said closing -member and guidemember being mounted for relative movement and provided with yieldingmeans for resisting such movement. p

14. In combination with a chute, an'undercut gate, adapted to be movedtoprevent discharge through said chute, an open guide member mountedto'move with said gate and adapted to guide the discharge of materialfrom the chute, said closing member and guide member being mounted forrelative movement and provided with yielding means for resisting suchmovement.

15. In combination with ach'ute, a chute closing member, adapted to bemoved to prevent discharge therethrough, in combination with an openguide member adapted to move with said closing member and to guide thedischarge of material from the chute, and a bafile within and extendingacross said guide member, said closing member and guide .member beingmounted for relative move- :ment and provided with yielding means forresisting such movement.

16. In a ski hoist, a chute, and a skip adapted to be lled therefrom, achute closing member adapted to be moved to prevent discharge throughsaid chute, in combination with an open guide member mounted to movewith said closing member, and adapted to guide the discharge of materialfrom the chute, said closing member and guide member being mounted forrelative movement and provided with-yielding means for resisting suchmovement.

17. In a skip hoist, a chute, and a skip adapted to be filled therefrom,a chute closing member adapted to be moved to prevent discharge throughsaid chute, in combination with an open guide member mounted to movewith said closing member, and adapted to guide the discharge of materialfrom the chute,-and to bridge the gap between the end of said chute andsaid skip, said closing member and guide'member being mounted forrelative movement and provided with yielding means for resisting Suchmovement.

18. In a skip hoist, a chute, and a skip adapted to be filled therefrom,a chute closing member adapted to be moved to prevent discharge throughsaid chute, in combination with an open guide member mounted to movewith said closing member, and adapted to guide the discharge of materialfrom the chute, and to bridge the gap between the end of the chute andsaid skip, said chute closing member adapted to be opened by thedownward movement of said skip and provided with a counterweight wherebyit is closed automatically as the skip moves upward, said closing memberand guide member being'mounted for relative movement and provided withyielding means for resisting such movement.

I 19. In a skip hoist, in combination a chute and a skip adapted to befilled therefrom, an undercut gate adapted to be moved to preventdischarge through said chute, an open guide member mounted to move withsaid gate and adapted to guide the discharge of material from the chute,said closing memher and guide member being mounted for relative movementand provi ed with yielding means for resisting such movement.

20. In a skip hoist, in combination a chute and a skip adapted to befilled therefrom, an undercut gate adapted to be moved to preventdischarge through said chute, an open guide member mounted to move withsaid gate and adapted to guide the discharge of material from the chute,and to bridge the gap between the discharge end of the said chute andsaid skip said undercut gate and said guide member mounted for limitedrela tive movement and yielding means for resisting such movement.

21. In a skip hoist, in combination a chute and a skip adapted to befilled therefrom, an undercut gate adaptedto be moved to preventdischarge through said chute, an open guide member mounted to move withsaid gate and adapted to guide the discharge of material from the chute,and to bridge the gap between the discharge end of said chute and saidskip, said guide member having within and extending across it aplurality of battles, said undercut gate and said guide member mountedfor limited relative movementand yielding means for resisting suchmovement.

22. In a ski hoist, a chute, and a skip adapted to be lled therefrom, achute closing member adapted to be moved'to prevent discharge throughsaid chute, in combination with an open guide member mounted to movewith said closing member, and adapted to-guide the discharge of materialfrom the chute, said guide member provided with projections, and saidskip provided with engaging projections whereby the chute closing memberis opened as the skip moves downward and is freed for closing as theskip moves upward, said undercut gate and said guide member mounted forlimited relative movement and yielding means for resisting suchmovement.

23. In combination with a chute, a chute closing member, adapted to bemoved to prevent discharge therethrough, in combination with an openguide member adapted to move with said closing member and to guide thedischarge of material from the chute, said closing member and guidemembe! being mounted for relative movement and provided with yieldingmeans for re sisting such movement, and an adjustable throat platemounted in said chute, and adapted to be moved to control the size ofsaid opening, I p

24. In combination with a chute, a chute closing member, adapted to bemoved to prevent discharge therethrough, in combination with an openguide member adapted to move with said closing member and to guide thedischarge of material from the chute, and a bafile within and extendingacross said guide member, said closing member and guide member beingmounted for relative movement and provided with yielding means forresisting such movement, and an adjustable throat plate mounted in saidchute, and ada ted to be moved to control the size of sai o ening.

25. n a ski hoist, in combination a chute and a skip a apted to befilled therefrom,- an undercut gate adapted to be moved to preventdischarge through said chute, an open guide member mounted to move withsaid gate'and adapted to guide the discharge of material from the chute,and to bridge the gap between the discharge end of said chute and saidskip, said guide member having within and extending across it aplurality of baffles, said undercut gate and said guide member mountedfor limited relative movement and yielding means for resisting suchmovement, and an adjustable throat plate mounted in said chute andadapted to be moved to control the size of said opening.

26. In combination with a chute, a chute closing member adapted to bemoved to prevent discharge therethrough, in combination with an openguide member adapted to move with said closing member and to guide thedischarge of material from the chute, said closing member and guidemember being mounted for relative movement.

27. In combination with a chute, a chute closing member adapted to bemoved to prevent discharge therethrough, in combination with an openguide member adapted to move with said closing member and to guide thedischarge of material from the chute, said closing member and guidemember being mounted for relative movement, said open guide member beingprovided with a plurality of bafile plates generally adjacent its openup er side.

Signed at Phila elphia, county of Phila delphia and State ofPennsylvania, this first day of September, 1925;

CHAS. M: YOUNG, JR.

